Komo-Tec Exige S EX460

[Maxi_z]

If you look  on the center grille on the front with the komotec 430 kit there should be the chargecooler radiator in front of the normal radiator air  flow.

As noted by a good lotus tuner in Italy that is not the best placement for the chargecooler radiator as it will take away some air flow to the main radiator and slightly heat the air that go to it.

I think those few degrees should not be a problem but it should explain why the engine temperature is a little different.

You could if you want change that komotec chargecooler radiator for the oem lotus parts of the exige 410 and 430

 

[geartox]

7 hours ago, Maxi_z said:

As noted by a good lotus tuner in Italy that is not the best placement for the chargecooler radiator as it will take away some air flow to the main radiator and slightly heat the air that go to it.

 

 

Interesting feedback. The radiator of the chargecooler on the 430 CUP is mounted like that : https://www.deroure.com/diagrams.asp?MAK=1&MDL=42&TBL=11606&SMA=0&SMO=0&ST=&SC=0

 

I am always interested to improve the cooling in order, I think, to increase the hardware life.

 

[geartox]

On 06/10/2019 at 17:43, Suto said:

https://www.komo-tec.com/en/lotus-elise/mk2-rover-2001-2004/cooling/377/alloy-water-radiator-thick-core-elise/exige?c=537

 

https://www.seriouslylotus.com/track-race/track-and-race-parts/pro-alloy-triple-pass-radiator

 

If the front clam is already down, maybe an option for u 😉. 

It seems that KT has just updated the offer :

 

https://www.komo-tec.com/en/lotus-exige/mk3-toyota-v6350380/cooling/635/alloy-water-radiator-thick-core-exige-sport-350/380/410/430?c=537

only one model available with FAN kit included

 

seems to be the same than the SL one : https://www.seriouslylotus.com/pro-alloy-exige-v6-radiator (only this one is compatible with V6 range)

 

 

 

 

[ratmbe]

is there a real difference in T ° or are we talking about a deviation of a few degrees?

[chumaxa]

Is there a point in buying them ? Did you guys notice some engine overheat on track ? 

[Joseph Antabi]

On 10/4/2018 at 14:10, geartox said:

 

What time it did without the upgrade ?

[geartox]

Does anyone replaced the OEM fuel pump with something bigger for the EX460 kit ?

 

 

[Mattmahope]

12 hours ago, geartox said:

Does anyone replaced the OEM fuel pump with something bigger for the EX460 kit ?

 

 

No need. Stock pump is fine. I still have a stock pump with 550cc injectors running 500hp.

[geartox]

@Mattmahope thank you

 

[Mark030358]

I think the 380 upwards had larger capacity fuel pumps.

cheers

[Wilbert Camshaft]

In August I drove my new Sport 350 EX460 Vivid Green Lotus first time in Zandvoort at 36° and unfortunately two times the water temperature exceeded 100° and I had to take a break.... (no harm done)

I was advised to switch off the AC which helped to keep the water temperature at 96° - good advice but a sweaty experience.....

So, preparing my Lotus for the 2021 trackday season two weeks ago KomoTec assembled the bigger radiator - I hope I'll help to keep the water temperature below 100° under any condition....

Additional they assembled the "Uniball Upright-Bushing-Kit „KT-Track“ - https://www.komo-tec.com/en/lotus-exige/mk3-toyota-v6350380/suspension/671/uniball-upright-bushing-kit-kt-track-for-exige-v6?c=521

 

 

[Mattmahope]

7 hours ago, Mark030358 said:

I think the 380 upwards had larger capacity fuel pumps.

cheers

Yes, that is correct. I have the standard 350 fuel pump and it’s still fine with the larger injectors at 500hp/7200rpm.

Will probably be upgrading the fuel system for the next stage of my build though...

[geartox]

I am always fighting against bad fuel system installation.

Can someone post a photo of the fuel connection to the EX460 fuel rail ? 

Thanks.

[Mark030358]

@geartox Tomorrow if you can wait?

 

[Mark030358]

@geartox How about these?  From my installation.

cheers

 

 

[geartox]

@Mark030358 thanks mate, really appreciate

 

[CRM82]

Sorry if I post in the wrong place, but I could not find any discussion about the KT-490? Is there a thread? Did anyone in the forum tried it?

[NANO]

If there isn't ... try opening a new EX490 subject ... 😉

 

 

if it's right for you ... eventually I found:

 

 

Edited February 20, 2021 by NANO

[TBD]

EX460JPS has hadf a busy year of upgrades this year.

But here the latest - installed the new Komo-Tec Front Wheel Arch Vents!

What a way to boost your blood pressure cutting into the front clam knowing that you don't want to repaint it afterwards. Fortunately the templates were included and there is a good video from Daniel on the installation.

And yes, I did install a mesh grill over the cutouts to avoid building a stone thrower.

And then I also exchanged the Alias23 polycarbonate side slirts agains the carbon side skirts from Eltech Itialia.

[Diablos-666]

Need some advice please.

I’m looking to get the KT460 kit for my V6s via SL.

I currently have the 70mm non-valved back box from 2bular (with separate silencer cans) which I’m really happy with, it’s loud on the street but quiet enough for track, but I’m told it will not work with the KT kit.

I know KT do a track friendly back box but I understand it’s a bit muted and I’m not keen on the single circular exhaust tip.

The OEM silencer will work but I’m sure it’ll be too loud for track.

What are you guys using please?

Thanks

[Tex]

You are better off with the full 2bular QP system. It is very similar to the KT system ie: 200cpi sports cat but does not have a restricted Y pipe. 2bular also better built.

The rest of the KT kit should work fine with it 

[Diablos-666]

I was considering the engine protection exhaust from 2bular but decided it’s probably best to stick with the KT system in case there are any issues or problems with the ECU map.

 

[Tex]

If you look at the KT system from the back box back you will see it is compromised as per pic.

The Y pipe before the flex pipe looks like someone has taken a hammer to it. Very strange and certainly not good for exhaust gas expulsion.

Pick the best exhaust system as you feel fit but it’s probably not a KT

 

 

[C8RKH]

The interesting is that KomoTec and 2Bular I am sure, but not certain, collaborated on exhausts for some time!

[Hangar 111]

21 minutes ago, Tex said:

If you look at the KT system from the back box back you will see it is compromised as per pic.

Different system on 350 cars.